The bank bailouts and the economic downturn increased the country's deficit and debt levels and led to a substantial downgrading of its credit rating. To build up trust in the financial markets, the government began to introduce austerity measures and it amended the Spanish Constitution in 2011 to require a balanced budget at both the national and regional level by 2020. The amendment states that public debt can not exceed 60% of GDP, though exceptions would be made in case of a natural catastrophe, economic recession or other emergencies.[121][122] As one of the largest eurozone economies (larger than Greece, Portugal and Ireland combined[123]) the condition of Spain's economy is of particular concern to international observers. Under pressure from the United States, the IMF, other European countries and the European Commission[124][125] the Spanish governments eventually succeeded in trimming the deficit from 11.2% of GDP in 2009 to an expected 5.4% in 2012.[123]
Nevertheless, in June 2012, Spain became a prime concern for the Euro-zone[126] when interest on Spain's 10-year bonds reached